Can I read some books in the library，Mr.Liu—No，You can’t read ________ you show me your card.That’s the rule of the library.

You can’t believe how terrible the fire is ____you see it with your own eyes.

I’ll call Bob and tell him the good news.—You __________ do that. He was here just now and heard it.

The woman asked the man _______.

The project Wang Lin’s life is one of the many government programmes ________improving the situation for the poorest people in China.